package collection;

import java.util.ArrayList;
import java.util.Collections;
import java.util.Comparator;
import java.util.List;

public class SortPoint {
    public static void main(String[] args) {
        List<Point> list=new ArrayList<>();
        list.add(new Point(5,9));
        list.add(new Point(15,19));
        list.add(new Point(25,29));
        list.add(new Point(55,59));
        list.add(new Point(75,79));
        list.add(new Point(35,39));
        System.out.println("原数组为："+list);
        list.sort(new Comparator<Point>() {
            @Override
            public int compare(Point o1, Point o2) {
                return o1.getX()-o2.getX();
            }
        });
        Collections.sort(list, (Point o1, Point o2)-> {
                int len1=o1.getX()*o1.getX()+o1.getY()*o1.getY();
                int len2=o2.getX()*o2.getX()+o2.getY()*o2.getY();
                return len1-len2;
            }
        );

        System.out.println("list排序为："+list);


    }

}
